| With the development and utilization of tidal current energy technology becoming more and more mature, higher requirements are put forward for its testing work. However, the influence of wave-current interaction is often neglected in the performance test of tidal energy convertors（TECs）, which results in inaccurate test results. In order to study the manner and extent of influence of wave-current interaction, carried out physical model experiment on the vertical-axis TEC. Through a series of static water towing tests and wave-making towing tests, the effects of waves on the power generation performance of TECs at different flow rates are studied. through the analysis of the torque, rotational speed and output power of device under the wave-current interaction, and found that the wave-current and device coupling effect each other significantly, compared with no wave effect, the rotation of the impeller and shaft torque is irregular, startup velocity decreases, at the same time, torque, rotational speed and output power of instantaneous value increase significantly. The test results show that the wave-current interaction has a significant impact on the performance test of the device, with an average impact of about 10%. The research results provide a reference and basis for the formulation and improvement of the performance test standards for TECs in the future. |
